Introduction to biomechanics


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4 Ways to Improve Running Biomechanics

Before reading this article, pleasehamstring muscles in the push-off phase of
understand that there is no such thing asthe running gait, but also keep your center
"perfect" running form. Since everyone hasof gravity consistently rolling forward.
different limb lengths, varying muscle fiberRather than focusing on using the muscles
sizes and angles, diverse masses, andaround the knee to provide the driving force,
separate running distance requirements, nofocus on running from the hips.Drill:
single athlete will run the same. But thereLean-fall-run. Stand completely still and as
are *characteristics* of a good runner thattall as possible. Without bending the knees,
remain fairly constant from person to person.let the entire body lean forward until you
Allow me to introduce you to four, and"fall" toward the ground and are forced to
include a drill to improve each.1. Increasetake your first step forward. Transition
knee range of motion during the swing phase.directly into a short 10-20 yard run,
This means that your right knee should becontinuing to lean forward and push backwards
more flexed (towards your butt) when yourwith the hips.4. Avoid excessive ankle and
right thigh is flexed forward during the run,hip flexion. Do not bend your knees or flex
as opposed to your right knee being moreyour ankles excessively during the landing
extended (away from butt). Same goes for thephase. While it may seem that this decreases
left, of course. Think of it this way - ifjoint impact forces, there is no empirical
you were swinging a weight attached to theevidence that runners who bend the knees more
end of a stick, you could move the weighthave less injuries than runners who do not.
faster with less effort if the stick wereHowever, there is evidence of increased time
shorter. In this case, the stick is your leg,spent in contact with the ground, which
and the weight is your foot. By having yourdecreases your elastic rebound from the
knee (the stick) more bent (or shorter), youground and the overall power of each stride.
are able to move the weight (your foot) muchYou will naturally avoid excessive knee and
faster with less effort. The result will notankle flexion if your focus on minimizing
only be a faster swing time (meaning a fasterfootstrike time.Drill: Cadence counts. During
foot turnover), but also reduced fatigue inyour run, count the number of right
achieving the desired stride length.Drill:footstrikes achieved in a span of 20 seconds.
Heel-to-butt kicks. During your normal run,There should be 30 or more, indicating a
begin to exaggerate knee flexion, touchingcadence of 90 or higher. Increased cadence
the butt with the heel during each stride. Doindicates decreased ground contact time.Focus
20 touches for both the right and left legs,on making these changes to your gait pattern,
then continue in your normal gait pattern.2.and you will notice a marked increase in
Maintain flexible quadriceps and hip flexors.efficiency and economy. As you prepare for
These are the muscles along the front of yourrace season and design your weekly and
thigh that act to straighten the leg. If theymonthly training plans, look into the
are tight, insufficient flexibility cantriathlete training specials offered by
inhibit your ability to fully extend the legPacific Elite Fitness, at Greenfield runs
in the push-off phase of the runningPacific  Elite  Fitness at an online portal
gait.Drill: Platform stretch. Ideally, your
pelvic bone should be tilted backwards whenfor personal training, triathlete coaching,
stretching the quadriceps and hip flexors. Toand  free  fitness  and  multi-sport
achieve this, find a platform or elevated
surface that is approximately at knee heightadvice. He resides in Liberty Lake, WA,
or slightly higher. Facing away from thewhere  he  works  as  director  of  sports
platform, and standing on your right leg,
bend your left knee and lock your left foot,performance for Champion Sports Medicine, a
shoelaces down, onto the surface. Hold 15-30training  and  testing  lab  for
seconds, then switch.3. Deliberately focus on
pushing backwards with each step. This willathletes.
not only incorporate your gluteal and



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